Paper Conference

Proceedings of eSim 2016: 9th Conference of IBPSA-Canada


Is heat recovery cost effective in Canadian commercial buildings?

Daniel Knapp

Abstract: As part of an effort to continuously improve the National Energy Code of Canada for Buildings (NECB), this study, carried out for the Office of Energy Efficiency at Natural Resources Canada, assesses the NECB 2011 requirement for exhaust air heat recovery. The study examines the costs and benefits of adding heat recovery to exhaust across a wide range of available technologies. The annual energy cost savings derived from adding heat recovery to thirteen archetype buildings are calculated in each of the six NECB climate zones using CAN-QUEST. These cost considerations and energy cost savings form the basis of a cost benefit analysis that is used to determine where heat recovery is justified. The results indicate that there is an opportunity to improve on the current NECB approach, and that heat recovery can provide a net cost benefit for most building types in all six NECB Canadian climate zones.
Pages: 414 - 425